Question 112(ii)
In the given figure, show that EF || GH
From the given figure, ∠GKL+∠LKJ=180∘⇒LKJ=180∘−∠GKL=180∘−50∘=130∘ Now, ∠ALI=∠LKJ=130∘EF || GH as their corresponding angles are equal.
Question 110(i)
In the given figure, examine whether the following pairs of lines are parallel or not. EF and GH